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WO1997034804A1 - Recipient repliable pour materiaux thermofusibles - Google Patents

Recipient repliable pour materiaux thermofusibles Download PDF

Info

Publication number
WO1997034804A1
WO1997034804A1 PCT/US1997/003187 US9703187W WO9734804A1 WO 1997034804 A1 WO1997034804 A1 WO 1997034804A1 US 9703187 W US9703187 W US 9703187W WO 9734804 A1 WO9734804 A1 WO 9734804A1
Authority
WO
WIPO (PCT)
Prior art keywords
collapsible container
heat
supply
heat producing
container according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US1997/003187
Other languages
English (en)
Inventor
Sol Schlesinger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE69723305T priority Critical patent/DE69723305D1/de
Priority to EP97908790A priority patent/EP0956237B1/fr
Priority to AU20610/97A priority patent/AU2061097A/en
Publication of WO1997034804A1 publication Critical patent/WO1997034804A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
    • B65B3/04—Methods of, or means for, filling the material into the containers or receptacles
    • B65B3/045—Methods of, or means for, filling the material into the containers or receptacles for filling flexible containers having a filling and dispensing spout, e.g. containers of the "bag-in-box"-type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B69/00—Unpacking of articles or materials, not otherwise provided for
    • B65B69/0066—Heating materials to facilitate their unpacking

Definitions

  • the present invention is directed to facilitating the transportation and handling of heat soluble materials such as, e.g., caprolactam, hexamethylene diamine (HMDA) , dodecanedioic acid (DDDA) , sulfur, asphalt, bituminous material, polymers and any monomers or salts of monomers used in the production and polymerization of polyamides.
  • An expandable/collapsible container or bag is employed for holding and dispensing the bulk material .
  • a system for transferring heat from or to a viscous fluid, e.g., a polymer, to thereby solidify or liquify the same was disclosed by SUN et al. in U.S. Patent No. 4,082,109.
  • pressurized containers for keeping and/or dispensing certain materials, e.g., freon, carbon dioxide, blood, grease, etc., so as to store the material in a contamination-free environment.
  • U.S. Patent No. 4,048,994 by LO and U.S. Patent No. 5,312,018 by EVERICH disclose flexible/collapsible containers for dispensing medical fluids, e.g., blood, intravenous fluid, etc. These devices require an outer chamber to become increasingly pressurized to dispense the stored fluids.
  • U.S. Patent No. 5,100,026 by FARRELL discloses a collapsible container for storing and transporting fluent materials, such as liquids, powders, and granular material.
  • the fluent material is introduced through a hole in the top of the container and discharged through a hose connected to the bottom of the container.
  • relatively low melting solids e.g., caprolactam, HMDA, DDDA, sulfur, asphalt, bituminous material, polymers, or any monomers or salts of monomers used in the production and polymerization of polyamides.
  • a flexible protective liner is disposed within the container for increasing physical strength and is sealed to maintain the material in an isolated and uncontaminated environment .
  • one aspect of present invention is directed to a collapsible container for transporting and handling a heat meltable material that includes a plurality of layers including at least a first and second layer, the first layer being resistant to the material, a pair of end members, including a first end member and a second end member, the pair of end members mounted for relative movement, and a heat producing member for converting the material into a liquid form, the heat producing member expanding and compressing with the relative movement of the pair of end members.
  • the container also includes an inlet port for receiving a heat producing supply and an outlet port for the heat producing supply after the heat producing supply has circulated through the heat producing member.
  • the heat producing supply includes one of water, steam, and a heat transfer medium.
  • the heat transfer medium including one of silicone fluid and mineral oil.
  • heat producing supply includes an electrical source.
  • the heat producing member includes a heating tube comprising at least one member selected from the group consisting of polyethylene, polypropylene, and aluminum foil.
  • the heat producing member includes a resistance wire element coated with at least one member selected from the group of silicone, polytetrafluoroethylene, polyphenylene sulfide, and thermoplastic.
  • the heat producing member has two ends and is arranged in the form of a helical cone, such that the two ends are coupled to the inlet and the outlet.
  • the two ends are coupled to the first end member and an apex of the helical cone is coupled to the second end member.
  • the first layer includes at least one of polyethylene, polypropylene, and aluminum foil.
  • the second layer includes one of paper, cloth, polymeric material, and metallic material.
  • the polymeric material can include at least one of the members of the group consisting of woven polyethylene, non-woven polyethylene, high density polypropylene, olefinic material, ionomeric material, and thermoplastic material .
  • the heat meltable material includes at least one of caprolactam, HMDA, DDDA, and any monomers or salts of monomers used in the production and polymerization of polyamides.
  • Another aspect of the present invention is directed to a method of preparing and filling a collapsible container for transporting and handling a heat meltable product.
  • the method includes the steps of evacuating any entrapped air within the collapsible container, compressing the collapsible container into a compressed position, purging an interior of the collapsible container to ensure the interior is contaminant free, coupling a sealing member to a material outlet port of the collapsible container, coupling one of a sealing member or a material supply to an inlet to a material inlet port of the collapsible container, that material supply comprising the heat meltable product in liquid form, storing the collapsible container if the sealing member is coupled to the material inlet port, filling the collapsible container with the heat meltable product if the material supply is coupled to the material inlet port of the collapsible container, removing the material supply from the material inlet port when the collapsible container is in an expanded position, and coupling the sealing member to the inlet port of the collapsible container for at least one of storing and transporting the container, wherein the heat meltable product
  • the collapsible container is purged with an inert gas.
  • a further aspect of the present invention is directed to a method for removing a heat meltable product from a collapsible container.
  • the method includes the steps of coupling a heat producing supply to an inlet port of the collapsible container, coupling an output port of the collapsible container to the heat producing supply, liquefying the heat meltable product within the collapsible container by circulating the heat producing through a heat producing member, removing the heat producing supply from the collapsible container after the heat meltable product is liquified, removing a sealing member from a material outlet port of the collapsible container, coupling an evacuating means for removing the liquified heat meltable product from the collapsible container, evacuating the contents of the collapsible container to place the collapsible container in a compressed position, removing the evacuating means from the material outlet port, and replacing the sealing member on the material outlet port.
  • Figure 1 shows a sectional side view of a flexible container and flexible tubing in its compressed stage according to the present invention taken along line A-A in Fig. 3;
  • Figure 2 shows a sectional side view of the flexible container and flexible tubing in its expanded stage of the present invention taken along line A-A in Fig. 3;
  • Figure 3 shows a front view of the container according to the present invention
  • Figure 4 shows a sectional side view of a flexible container and heating elements in its compressed stage according an alternative embodiment of the present invention taken along line B-B in Fig. 6;
  • Figure 5 shows a sectional side view of the flexible container and heating elements in its expanded stage according to the alternative embodiment of the present invention taken along line B-B in Fig. 6;
  • Figure 6 shows a front view of the container according to the alternative embodiment of the present invention.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The particulars shown herein are by way of example and for purposes of illustrative discussion of the preferred embodiments of the present invention only and are presented in the cause of providing what is believed to be the most useful and readily understood description of the principles and conceptual aspects of the invention. In this regard, no attempt is made to show structural details of the invention in more detail than is necessary for the fundamental understanding of the invention, the description taken with the drawings making apparent to those skilled in the art how the several forms of the invention may be embodied in practice.
  • the collapsible container 10 comprises an internal layer 12, an external layer 14, a heating tube 15, and rigid end members 17, 18.
  • Internal layer 12 is designed to be resistant to the material to be contained therein.
  • the present invention contemplates that, because the material is to be loaded into and to be removed from the container as a liquid, internal layer 12 must be inert to the molten material to be contained therein.
  • the present invention preferably is utilized with caprolactam, HMDA, DDDA, any monomers or salt combinations thereof used in the production or polymerization of polyamides (polyester) , the internal layer is preferably resistant to these materials.
  • Thermoplastics (monoaxial or biaxial) , e.g., polyethylene, polypropylene, and metallic foil layers, e.g., aluminum foil, ' have been shown to resist the materials to be preferably contained and therefore are preferred materials for internal layer 12.
  • Internal layer 12 is preferably designed to a thickness of approximately 0.5 - 25.0 mils.
  • the thickness may be between 0.5 mils and 5 mils, and preferably approximately 1.0 mils thick; when a monoaxial material, e.g., a polypropylene material that is prepared by one-dimensional stretching, is employed for the internal layer, the thickness may be between 1.0 mils and 25.0 mils, and preferably approximately 3.0 mils thick.
  • External layer 14 is designed to be flexible, yet strong enough to contain, protect, and retain inner layer 12.
  • External layer 14 preferably is comprised of woven or non ⁇ woven polyethylene, high density polyethylene, paper, cloth, or other suitable material, and may be made of polymeric materials, e.g., thermoplastic, ionomeric, olefinic material or metallic materials.
  • the external layer is preferably designed to a thickness of approximately the same as the internal layer, i.e., 0.5 - 25.0 mils.
  • the internal and external layers 12, 14 are movable together from a compressed position ( Figure 1) to an expanded position ( Figure 2) , and vice versa.
  • the internal and external layers may be attached, e.g., fused together, or separate.
  • the flexible container has a cross- sectional configuration that may be, for example, circular, square, polygonal, etc., with any dimensions that may be desired by the ordinarily skilled artisan. However, due to capacity of normal shipping containers, a preferred dimension for the cross-section of collapsible container may be approximately 8' x 8' .
  • the flexible container of the present invention may preferably approximately 2" - 12" in length.
  • the flexible container In the expanded position, the flexible container may preferably approximately 20' - 40' in length.
  • Heat tubing 15 is preferably oriented in a conical spiral configuration in which the base is preferably mounted to the inside of rigid end member 17 and the apex is preferably mounted to the inside of rigid end member 18.
  • Heating tube 15 also includes an inlet 20 and an outlet 22, which penetrate rigid end member 17 for receiving and expelling, respectively a heat carrying medium.
  • Heat tubing 15 may preferably be made of, e.g., the same materials as internal layer 12, and the heat carrying medium may preferably be, for example, hot water, steam, or other heat transfer medium, e.g., silicone fluid or mineral oil.
  • Heat tubing 15 is preferably circular in cross-section, however, any other shape that allows circulation of the heat carrying medium is within the purview of the present invention. In general, heat tubing 15 is preferably disposed such that approximately 1 - 5 spirals are positioned per foot in length of the container (expanded) .
  • the specific temperature produced by the circulating heat carrying medium depends upon the material within the container. For example, if the material is caprolactam (which has a heat of fusion number of approximately 124 KJ/kg) , the produced temperature must be at least 150° F, i.e., the melting point of caprolactam.
  • Each of the inlet and outlet ports 20, 24 and 22, 26 may be provided with coupling members (not shown) for mechanically coupling the flexible container to the heat carrying medium and to a material supply (not shown) .
  • Rigid end members 17, 18 are preferably constructed of, e.g., the same material as the internal layer 12, cardboard, or metal, and dimensioned to be approximately 1" - 1.5" thick.
  • Inlet 24 and outlet 26 are preferably approximately 1.5" - 2" in diameter.
  • an 8' x 8' x 20' container is preferably designed to hold approximately 40,000 pounds of material, e.g., caprolactam.
  • material e.g., caprolactam.
  • the total weight of the material within the container depends upon the per unit mass of the material, whether the container is full, etc.
  • the container may be compressed or evacuated so as to remove any entrapped air, e.g., placed into the compressed position as shown in Figure 1.
  • the container may then preferably be purged with a suitable inert gas, e.g., nitrogen, to ensure that the container is contaminant free prior to filling.
  • Material inlet 24 and material outlet 26 are then sealed by suitable sealing members (not shown) and may be stored until it is desired to fill the flexible container.
  • a supply line may be coupled to material inlet 24, and the material is pumped into the container in either solid or liquid form, although the liquid form is preferred.
  • the container begins to fill and expand until it reaches the expanded (or filled) position shown in Figure 2.
  • the supply line is removed from material inlet 24, and material inlet 24 is sealed by the suitable sealing member.
  • the material inside the container freezes, i.e., solidifies. The container may then be stored or transported in any suitable manner to a desired destination.
  • a heat carrying medium supply source (not shown) is coupled to inlet 20 for supplying the heat carrying medium into the container via heat tubing 15.
  • a heat carrying medium withdrawing device (not shown) , e.g., a pump, may be coupled to outlet 22 for drawing out the heat carrying medium supplied to heat tubing 15 through inlet 20.
  • a heat carrying medium receiver or reservoir (not shown) , e.g., a supply tank, may be coupled to outlet 22 to receive the heat carrying medium that has been circulated throughout heat tubing 15.
  • the heat carrying medium is caused to steadily flow through heat tubing 15.
  • the material within the container is thereby heated and converted into liquid form.
  • the discharge hose may preferably be coupled to a pump (not shown) or other suitable means for forcibly extracting the material from container 10 and introducing the material into a suitable storage facility (not shown) . Because the container is preferably evacuated of entrapped air, as the material is pumped from the container, rigid end member 18 will be forced toward rigid end member 17 until the container is empty and in the compressed position. At this point, the discharge hose may be removed from the container and the suitable sealing member may be replaced over material outlet 26. Thus, the container is ready for reuse to transport the same material. Further, if the internal layer, external layer, and heating tube are made of the same material, the collapsible container of the present invention is fully recyclable.
  • An alternative embodiment of the present invention will now be described with reference to Figures 4 - 6. The alternative embodiment is substantially similar to the preferred embodiment except that heating tube 15 has been replaced with a heating element 16, and rigid end member 17 includes electrical contacts 30, 32.
  • Heating element 16 may be a metallic resistance wire element coated with, e.g. , silicone, polytetrafluoroethylene (Teflon) , polyphenylene sulfide, or thermoplastic. While heating element 16 is preferably arranged as a conical helicoid, i.e., arranged within the container just as the heating tube 15 in Figs. 1 - 3, the heating element may be alternatively arranged as shown in Figs. 4 - 6 as helically traversing the length of container 10 along its inner periphery. It is noted, however, that still other arrangements of heating element 16 may be contemplated by those ordinarily skilled in the art .
  • Rigid end member 17 is shown with a positive and negative node 30 and 32.
  • Positive node 30 is coupled to one end of heating element 16 and negative node 32 is coupled to the other end of heating element 16.
  • the source for heating element 16 in the alternative embodiment may be either d.c. or a.c. current.
  • filling container 10 is the same in the alternative embodiment as in the preferred embodiment, however, the material removal is somewhat different.
  • d.c. electric source (not shown) is connected to heating element 16 through the positive and negative nodes 30, 32.
  • heating element 16 will begin to heat the container and its contents.
  • the discharge hose (not shown) will then be connected to the container as described in the preferred embodiment .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)

Abstract

Récipient repliable (10), rendant plus aisés le transport et la manipulation de matériaux thermofusibles, et utilisé pour contenir et distribuer un matériau en vrac. Ce matériau est transporté sous une forme solide et mis sous une forme liquide pour être enlevé du récipient (10). Celui-ci (10) comprend une tubulure thermique (15) destinée à faire circuler un milieu conduisant la chaleur ou un élément chauffant pour chauffer et mettre le matériau en vrac sous une forme liquide. Le matériau liquéfié est ensuite pompé du récipient vers une installation de stockage appropriée.
PCT/US1997/003187 1996-03-19 1997-03-07 Recipient repliable pour materiaux thermofusibles Ceased WO1997034804A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE69723305T DE69723305D1 (de) 1996-03-19 1997-03-07 Zusammenlegbarer behälter für heissschmelzmaterialien
EP97908790A EP0956237B1 (fr) 1996-03-19 1997-03-07 Recipient repliable pour materiaux thermofusibles
AU20610/97A AU2061097A (en) 1996-03-19 1997-03-07 Collapsible container for heat meltable materials

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/618,200 1996-03-19
US08/618,200 US5706872A (en) 1996-03-19 1996-03-19 Collapsible container for bulk transport and handling of heat meltable materials

Publications (1)

Publication Number Publication Date
WO1997034804A1 true WO1997034804A1 (fr) 1997-09-25

Family

ID=24476737

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/003187 Ceased WO1997034804A1 (fr) 1996-03-19 1997-03-07 Recipient repliable pour materiaux thermofusibles

Country Status (5)

Country Link
US (1) US5706872A (fr)
EP (1) EP0956237B1 (fr)
AU (1) AU2061097A (fr)
DE (1) DE69723305D1 (fr)
WO (1) WO1997034804A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2366283A (en) * 2000-08-30 2002-03-06 Brendan Mckenna Apparatus for use in the transportation of liquids, gels, thixotropic fluids and the like

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5960983A (en) * 1997-10-06 1999-10-05 Chan; Chin Chung Collapsible garbage receptacle
US6294761B1 (en) * 1999-12-01 2001-09-25 Raymond David Diederich Heat-resisting package for hot-melt adhesive
ITMI20061737A1 (it) * 2006-09-12 2008-03-13 Snam Progetti Procedimento per il trasporto di zolfo a basso rischio e ad emissione zero da depositi di zolfo solido in blocchi di notevoli dimensioni
WO2010022499A1 (fr) * 2008-08-27 2010-03-04 Mierzewski Edward Blocs de soufre renforcés de manière structurale et procédés de fabrication

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US2136738A (en) 1937-09-04 1938-11-15 Giordano Joseph Railway tank car heating apparatus
US3240394A (en) 1959-08-26 1966-03-15 Modern Lab Inc Pressurized dispensing container
US3590888A (en) 1966-12-05 1971-07-06 Clarence B Coleman Composite container and method of handling fluent materials
US4048994A (en) 1976-08-24 1977-09-20 Lo Liu Ying P Self-inflating liquid container for keeping I.V. fluid or blood plasma
US4050740A (en) 1975-02-20 1977-09-27 Ernest Ralph Ellithorpe Method of and apparatus for melting block sulphur
US4082109A (en) 1976-09-03 1978-04-04 Hughes Aircraft Company Heat pipe actuated valve
US4432715A (en) * 1982-03-01 1984-02-21 Ghim Duk K Molten material dispensing apparatus
US4461599A (en) * 1977-03-31 1984-07-24 Nihon Sekiyu Hanbai Kabushiki Kaisha Apparatus for storing heavy hydrocarbon oil and vessel therefor
US4515189A (en) 1983-07-11 1985-05-07 General American Transportation Corporation Molten sulfur tank car assembly
US4597609A (en) 1984-07-31 1986-07-01 Burza Resources Ltd. Method of melting sulphur
US4924897A (en) 1985-04-29 1990-05-15 Ashland Oil, Inc. Vent system
US5100026A (en) 1989-07-07 1992-03-31 Concertainer Limited Collapsible container apparatus for use in the storage and transportation of fluid material
US5115944A (en) 1990-08-14 1992-05-26 Illinois Tool Works Inc. Fluid dispenser having a collapsible inner bag
US5137179A (en) 1990-02-15 1992-08-11 Hans Stoffel Containers and methods for preparing and manufacturing the same
US5339989A (en) 1990-05-07 1994-08-23 Fabricated Metals, Inc. Bulk material containing having a flexible liner with a follower

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Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2136738A (en) 1937-09-04 1938-11-15 Giordano Joseph Railway tank car heating apparatus
US3240394A (en) 1959-08-26 1966-03-15 Modern Lab Inc Pressurized dispensing container
US3590888A (en) 1966-12-05 1971-07-06 Clarence B Coleman Composite container and method of handling fluent materials
US4050740A (en) 1975-02-20 1977-09-27 Ernest Ralph Ellithorpe Method of and apparatus for melting block sulphur
US4048994A (en) 1976-08-24 1977-09-20 Lo Liu Ying P Self-inflating liquid container for keeping I.V. fluid or blood plasma
US4082109A (en) 1976-09-03 1978-04-04 Hughes Aircraft Company Heat pipe actuated valve
US4461599A (en) * 1977-03-31 1984-07-24 Nihon Sekiyu Hanbai Kabushiki Kaisha Apparatus for storing heavy hydrocarbon oil and vessel therefor
US4432715A (en) * 1982-03-01 1984-02-21 Ghim Duk K Molten material dispensing apparatus
US4515189A (en) 1983-07-11 1985-05-07 General American Transportation Corporation Molten sulfur tank car assembly
US4597609A (en) 1984-07-31 1986-07-01 Burza Resources Ltd. Method of melting sulphur
US4924897A (en) 1985-04-29 1990-05-15 Ashland Oil, Inc. Vent system
US5100026A (en) 1989-07-07 1992-03-31 Concertainer Limited Collapsible container apparatus for use in the storage and transportation of fluid material
US5137179A (en) 1990-02-15 1992-08-11 Hans Stoffel Containers and methods for preparing and manufacturing the same
US5339989A (en) 1990-05-07 1994-08-23 Fabricated Metals, Inc. Bulk material containing having a flexible liner with a follower
US5115944A (en) 1990-08-14 1992-05-26 Illinois Tool Works Inc. Fluid dispenser having a collapsible inner bag

Non-Patent Citations (1)

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Title
See also references of EP0956237A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2366283A (en) * 2000-08-30 2002-03-06 Brendan Mckenna Apparatus for use in the transportation of liquids, gels, thixotropic fluids and the like

Also Published As

Publication number Publication date
EP0956237B1 (fr) 2003-07-02
DE69723305D1 (de) 2003-08-07
EP0956237A1 (fr) 1999-11-17
EP0956237A4 (fr) 2000-05-10
AU2061097A (en) 1997-10-10
US5706872A (en) 1998-01-13

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